Why do I have some strange shadows on adjacent static meshes?

Dear all,

I have a very strange problem. I have used 3 static meshes provided with unreal (Architecture walls and floors) and put them one next to the other (they do not overlap). Why does a strange shadow appear on the wall in the middle and floor in the middle. On the opposite side (where camera stands) I have 3 more walls which are identical to the ones you see. Meshes are totally the same and have all the same settings.

Thank you in advance! Kind regards
Dusan

Hi,

This has come up numerous times on the forums and the AnswerHub.

You can find more information here about that and how to get rid of the seams.

You’ll need to adjust some settings in the World Settings > Lightmass to get more contiguous shadows that are like this.

Adjust Indirect Lighting Quality to 2 or higher (will increase light build times)
Adjust Indirect Lighting SMoothness to around 0.6
If this doesn’t help enough, you can adjust the Static Lighting Level Scale to a lower value (this will increase lighting build times as well)

Also make sure to have a lightmass importance volume in your scene.

Give this a shot and let me know if you have any more questions.

Tim